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Cost of Building a Retaining Wall

Last updated: 7th Oct 2019

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A basic retaining wall can go for as low as $137.50/m2. However, on average, retaining wall builders in Australia are charging approximately $250/m2 for their services. It is important to note that retaining wall prices depend on several factors such as the materials that will be used as well as the size of the wall.

Although it’s more common for businesses to charge per square metre, there are also tradies who prefer to be paid on a per-hour basis. In this case, the average hourly rate of retaining wall builders is around $55/hr.

Where do these prices come from?

All prices stated in this article are based on FY 2018 pricing data compiled by The figures resulted from a comprehensive analysis of quotes submitted by Retaining Wall Builders on the site from July 2016 to July 2017.

Retained factors that determine high or low costs

Labour cost is one of the main factors that determines how much you will spend on a retaining wall. The amount of labour usually depends on the size and complexity of the project. If you want a long stretch of retaining wall that surrounds your garden or property, be prepared to shell out a good deal of money.

Complicated formwork with curves and decorative finishes as well as additional reinforcements for ensuring the strength and stability of the retaining wall means more amount of work to be done.

Backyard with built retaining wall

Photo from: Capital Landscapes

The materials that will be used can also drive up the cost of your retaining wall. Here are the different types of retaining walls according to the material used:

  • Timber
  • Concrete
  • Natural stone
  • Bricks

The most affordable material is treated pine followed by hardwood. Materials such as concrete and natural stone will cost you a lot more in upfront costs, but their durability definitely makes up for that.

Retaining walls cost

Click the infographic image to expand.

How much do retaining wall builders charge?

The average cost of hiring retaining wall builders in South Australia is $380/m2. Meanwhile, Queensland residents are paying an average rate of $250/m2 for the same kind of service.

In Victoria, you need to shell out around $190/m2 to have a retaining wall built on your property. On the other hand, the average retaining wall price in New South Wales is $150/m2.

Building a retaining wall in Western Australia costs approximately $70/m2, which is the lowest average rate across Australia.

To get started on your retaining wall project, you can check the list of reliable and highly experienced retaining wall builders in your area at

Pricing information correct as at August 2017.

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